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Add serialization of ScalarValue::Struct #3536

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merged 4 commits into from
Sep 28, 2022

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alamb
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@alamb alamb commented Sep 19, 2022

Draft as it builds on #3535

Which issue does this PR close?

Closes #3531

Rationale for this change

See #3531

What changes are included in this PR?

Changes:

  1. Implement serialization code for: ScalarValue::Struct
  2. Add tests

Are there any user-facing changes?

No

@alamb alamb force-pushed the alamb/serialize_struct branch from 1c7b3fe to cc2b408 Compare September 23, 2022 10:17
@alamb alamb marked this pull request as ready for review September 23, 2022 12:34
@alamb alamb requested a review from tustvold September 25, 2022 11:35
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I think this is fine, although I would question the need for is_null. Whilst it is faithful to ScalarValue, perhaps ScalarValue shouldn't contain the additional Option? 🤔

@@ -739,6 +739,13 @@ message IntervalMonthDayNanoValue {
int64 nanos = 3;
}

message StructValue {
// encode null explicitly to distinguish a struct with no fields (is
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If there are no fields there can't be any values, null or otherwise? I therefore think we could drop this?

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I will try and remove it

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Added an assert that there are always at least one Field / value and removed explicit support is_null in 88370bf

@alamb alamb merged commit b4c0601 into apache:master Sep 28, 2022
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ursabot commented Sep 28, 2022

Benchmark runs are scheduled for baseline = 41b59cf and contender = b4c0601. b4c0601 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java

@alamb alamb deleted the alamb/serialize_struct branch August 8, 2023 20:13
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